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Topic: Fit For TV

Chris Hemsworth in "Limitless" (National Geographic/Evan Paterakis)

Screaming our way to a fitter world

Melanie McFarland
Contestants from the hit extreme weight loss reality TV show (2004-2016) celebrate their weight loss by running a half-marathon. But a new documentary gives a behind the scenes look that all might not be as picture perfect as seen on TV. (Andy Kropa / Getty Images)

Biggest Loser’s dark legacy revealed

CK Smith